CN101460247A - Rolling press, in particular for material bed comminution - Google Patents
Rolling press, in particular for material bed comminution Download PDFInfo
- Publication number
- CN101460247A CN101460247A CNA2007800205264A CN200780020526A CN101460247A CN 101460247 A CN101460247 A CN 101460247A CN A2007800205264 A CNA2007800205264 A CN A2007800205264A CN 200780020526 A CN200780020526 A CN 200780020526A CN 101460247 A CN101460247 A CN 101460247A
- Authority
- CN
- China
- Prior art keywords
- conveying worm
- roll gap
- pressure conveying
- feed hopper
- roller extruder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 126
- 238000005096 rolling process Methods 0.000 title 1
- 230000008676 import Effects 0.000 claims description 19
- 238000012216 screening Methods 0.000 claims description 9
- 238000010298 pulverizing process Methods 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 5
- 238000011282 treatment Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 9
- 238000000227 grinding Methods 0.000 abstract description 3
- 239000010881 fly ash Substances 0.000 abstract 1
- 238000003801 milling Methods 0.000 description 6
- 206010039509 Scab Diseases 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 235000013325 dietary fiber Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/286—Feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
- B30B15/302—Feeding material in particulate or plastic state to moulding presses
- B30B15/308—Feeding material in particulate or plastic state to moulding presses in a continuous manner, e.g. for roller presses, screw extrusion presses
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
In order to provide a roller press which is used in particular for interparticle crushing and in the material feed shaft of which both coarse-grained material, such as fresh material for example, and fine-grained material, such as, for example, recirculated grits of a downstream classifier and/or, for example, fly ash, are introduced, wherein, despite the markedly different grain size and grain distribution in the two material flows to be drawn into the roller gap, the stability of the particle bed or grinding bed and thus a high grinding efficiency are ensured, it is proposed according to the invention that a pressure screw conveying the fine material under applied pressure be inserted into the material feed shaft through the at least one fine-grain charging opening of the latter, the nozzle-like orifice of which pressure screw, in particular a flat nozzle, extends right into the central region in which the material is drawn into the pressing roller gap.
Description
Technical field
The present invention relates to a kind of roller extruder that is used for granular material is carried out pressurized treatments, particularly bed of material pulverizing or compacting or briquetting, comprise two rotatably mounted, that drive and rollers that be separated from each other by a press nip in the other direction, and comprising a material feed hopper that is arranged on roll gap top, this material feed hopper has and is used for importing the input port of thick material and is used to import the input port of gravel of recirculation that thin material for example is connected the screening plant in loop.
Background technology
In service at such roller extruder that is used for the pressurized treatments granule materials, import in the material feed hopper mill material for example concrete raw material, clinker, ore etc. monolithic or particle each roller of being reversed driving catch and be drawn in the roll gap by friction.At this each individual particle that is being drawn into the material of milling in the narrowest roll gap in a bed of material, promptly at one between two roller surfaces in the compressed material bulk cargo, when using a high thrust, pulverized mutually, pulverized thereby be called so-called bed of material at this.
If flowing to convey materials to the small part of roller extruder had been very fine grain already, wherein to the new supply material of material feed hopper input, for example one of them roller extruder is in case of necessity via a large amount of particles of the screening machine recirculation that is provided with after carefully milling, thereby the material that worsens roller is thus drawn in ability and reduced the rate of discharge of roller extruder.The conveying of material flow that then has significantly different granular sizes and distribution of particles is because the separation in leading to the material feed hopper of roller extruder is debatable.The bulk cargo density of the gravel of recirculation is promptly sieved the porous of the porous of gravel greater than new supply material significantly less than the bulk cargo density of new supply material.Alternately supplying with thicker and thinner material disturbs the stability of the bed of milling and reduces grinding efficiency to roll gap.
Fig. 2 and Fig. 3 of DE 3916641 A1 advised already, in the material feed hopper, import the screening gravel that thick material for example new mill material and thin material for example recycle being used for roller extruder that bed of material pulverizes separated from one anotherly, melting sand (H ü ttensand) etc., and with thin material in the material feed hopper by self a precommpression roller precommpression so that make in this way thin material porous and thick material or new material porous near and improve the material of material material in the roll gap of the high pressure roller extruder of reality that constitutes by new material and the thin material that compresses in advance and draw in condition.Yet this technology needs to use at least three rollers and correspondingly cumbersome.
Three rollers are installed in a machine frame in the bed of material pulverizing-roller extruder of DE-38 23 929 A1 equally, i.e. driven home roll is pressed in not driven idler roller by means of the pressurizing unit of a hydraulic pressure on the upper area of home roll and with one and is not pressed on the lower area of home roll by second idler roller in zone.In this scheme in first (top) roll gap only new supply material by precomminution, and the screening gravel of the recirculation of the screening machine that connects after importing in second (bottom) roll gap of the roller extruder of two on the whole step work, promptly pre-already compressed material material that pushes and the relative very screening gritting material of loosening porous are drawn into by friction in the roll gap of bottom in the roll gap on top, and this is debatable for the reasons mentioned above.
Become known for pushing the roller extruder of fine grain salt in addition by DE-C 38 02 173, above its roll gap, be arranged side by side a plurality of filling hoppers, exist one to fill screw rod therein respectively, promptly supply with material on the whole and be fed to roll gap via filling screw rod.Be unrealized at this and in roll gap, handle and to supply with thin material and thick material individually.
Summary of the invention
The objective of the invention is to, a kind of simple relatively roller extruder that constitutes especially for the bed of material pulverizing is provided, in its material feed hopper, not only import the gravel and/or the flying dust for example of the recirculation of the screening plant that for example new material of coarse grained material and fine grain material connect after for example, although wherein wait to be drawn into the remarkable different granular size and the distribution of particles of two material flow in the roll gap, still guarantee bed of material or the stability of the bed of milling and so high degree of milling.
The above-mentioned purpose roller extruder realization that utilization has the feature of claim 1 according to the present invention, favourable structure of the present invention provides in the dependent claims.
Two material flow in the roller extruder of pulverizing especially for bed of material of the present invention, promptly coarse grained material and fine grain material import in the material feed hopper separated from one anotherly.The material feed hopper has a thick material input port and preferably has at least one thin material input port transverse to roll gap on the side on the side thereon for this reason.According to the present invention, one at least one thin material input port of carrying the pressure conveying worm be in the thin material under the extruding force to pass the material feed hopper imports in material feed hopper, and the outlet of the nozzle-like of described pressure conveying worm is stretched into the material at center of the press nip of roller extruder always and drawn in the zone.Fine particle materials is surrounded by the coarse granule material in this high-pressure area at roll gap, and the danger dangerous and that roughage and thin material are alternately imported in the roll gap that makes two kinds of material flow separate in the material feed hopper thus minimizes.This is particularly favourable, when the nozzle that is used to import thin material part of pressure conveying worm is one when being arranged on the narrowest roll gap flat burner top, parallel with this roll gap.
Feature according to another preferred, the pressure conveying worm imports the material feed hopper transverse to roll gap obliquely from side direction along horizontal direction or with horizontal direction, and the nozzle of this pressure conveying worm should be hinged in the outlet of pressure conveying worm via a joint.Therefore nozzle particularly flat burner above the roll gap of roller extruder, be centered in the Center of Pressure from the pressurised zone inside in bed of material.
Description of drawings
The present invention and other feature and advantage of the present invention elaborate by means of the embodiment shown in the accompanying drawing:
First embodiment of Fig. 1 roller extruder of the present invention has an approximate horizontal is provided with, the interior thin material-pressure conveying worm of importing material feed hopper; And
Second embodiment of Fig. 2 roller extruder, wherein the pressure conveying worm is obliquely installed with respect to horizontal line.
The specific embodiment
According to Fig. 1, but roller extruder of the present invention have two rotatable supportings reverse rotation and by press nip roller 10,11 separated from one another, its middle roller 10 is fixing rollers, and other roller 11 constitute can be transverse to the unsteady roller of roll gap motion, its bear box supports via hydraulic cylinder, utilizes described hydraulic cylinder to apply the roller extruding force.
A material feed hopper 12 is set above roll gap, and this material feed hopper has an input port 13 that is used to import thick material 14 on the side thereon, and thick material 14 is transferred under the gravity effect.Thick material 14 for example can be a for example clinker etc. of new material to be pulverized or that mill, and the slope upside of the bulk cargo material feed hopper 12 in utilizes 15 to represent.Material feed hopper 12 has at least one thin material input port 16 in the side in addition, the pressure conveying worm 17 that conveying is in the thin material material under the extruding force passes described thin material input port and imports in the material feed hopper 12, and the outlet of the nozzle shape of described pressure conveying worm extend into the material at the center of press nip always and draws in the zone.Import the granular size of the thin material 19 in the charging aperture 18 of pressure conveying worm 17 and distribution of particles and be with thick material 14 visibly different.Thereby the granular size of the thin material 19 that imports for example can be until 100%＜3mm, and this is this situation when the screening gravel that imports for example thin recirculation, flying dust, slag sand, the slag of carefully milling etc.
The nozzle that is used to import fine fraction 19 in the outlet of pressure conveying worm 17 is that be provided with above the narrowest roll gap, that be parallel to this roll gap, as to be arranged on bed of material bulk cargo 15 an inside flat burner 20.Flat burner 20 can be hinged in the outlet of pressure conveying worm 17 via a joint 21.In any case the Center of Pressure that the nozzle 20 of pressure conveying worm is drawn in the zone at the material of press nip is surrounded by remaining raw granulate fraction 15 in roll gap in all directions, avoid the mixing of two kinds of material flow in the zone of the narrowest roll gap thus, high relatively roller extruding force works in the material bulk cargo when bed of material is pulverized in this zone.
Differently with Fig. 1 in the embodiment of Fig. 2 be, the pressure conveying worm of arranging transverse to roll gap 17 imports in the material feed hopper 12 of roller extruder obliquely with horizontal line, and promptly the material of pressure conveying worm 17 is supplied with the outlet with flat burner 20 that the end is higher than the pressure conveying worm.Yet this scheme provides additional advantage, does not promptly stop the installation and removal of roller 10 by pressure conveying worm 17.
The roller 10,11 of roller extruder acts on extruding force on the material greater than every meter roller length of 2MN/ in all embodiment.The granular size of the major part of the thick material 14 of input can be greater than the narrowest roll-gap width (for example 20mm), this for example to be milled do not pulverize in advance to have under the situation of the clinker of the granular size of for example 100mm be this situation, material is pulverized by the individual particle of combination in the narrowest roll gap and the bed of material pulverizing is pulverized thereby then supply with.Material is come out with part caking ground (promptly being compressed into scab 22) all to pieces by roll gap, and its share (for example 30%＜90 μ m) of particle that is decreased to the final fineness of expectation already can be very high.By depolymerization and be sized, wherein sieve gravel 19 and be recirculated to pressure conveying worm 17 and be recirculated in the narrowest roll gap of roller extruder in the device that next scab 22 connects after from there.
Claims (6)
1. be used for granular material is carried out pressurized treatments, the roller extruder of bed of material pulverizing or compacting or briquetting particularly, comprise two rotatably mounted, roller (10 that drive in the other direction and that be separated from each other by a press nip, 11), and comprise a material feed hopper (12) that is arranged on roll gap top, this material feed hopper has the input port (13) that is used for importing thick material and is used to import the input port (16) of gravel of recirculation that thin material for example is connected the screening plant in loop
It is characterized in that, one described at least one thin material-input port (16) of carrying the pressure conveying worm (17) that is in the thin material under the extruding force to pass material feed hopper (12) imports in the material feed hopper (12), and the outlet of the nozzle-like of described pressure conveying worm (20) is stretched into the material at the center of press nip always and drawn in the zone.
2. roller extruder as claimed in claim 1 is characterized in that, the nozzle that being used to of pressure conveying worm (17) imports thin material part (19) is one and is arranged on the narrowest roll gap flat burner (20) top, parallel with this roll gap.
3. roller extruder as claimed in claim 1 or 2 is characterized in that, pressure conveying worm (17) flatly or with horizontal line imports in the material feed hopper (12) from a side obliquely transverse to roll gap.
4. as one of claim 1 to 3 described roller extruder, it is characterized in that the nozzle (20) of pressure conveying worm (17) is hinged in the outlet of pressure conveying worm (17) via a joint (21).
5. as one of claim 1 to 4 item or multinomial described roller extruder, it is characterized in that the nozzle (20) of pressure conveying worm (17) is drawn in the thick material part (15) that the Center of Pressure in zone is positioned in the roll gap at the material of press nip and surrounded in all directions.
6. as one of claim 1 to 5 described roller extruder, it is characterized in that, wait to utilize the thin material granular size partly of pressure conveying worm (17) conveying until 100%＜3mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006025833.9 | 2006-06-02 | ||
| DE102006025833A DE102006025833A1 (en) | 2006-06-02 | 2006-06-02 | Roller press especially for comminution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101460247A true CN101460247A (en) | 2009-06-17 |
Family
ID=38324018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800205264A Pending CN101460247A (en) | 2006-06-02 | 2007-06-01 | Rolling press, in particular for material bed comminution |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20090236455A1 (en) |
| EP (1) | EP2024091B1 (en) |
| CN (1) | CN101460247A (en) |
| CA (1) | CA2653065A1 (en) |
| DE (1) | DE102006025833A1 (en) |
| DK (1) | DK2024091T3 (en) |
| RU (1) | RU2008144301A (en) |
| WO (1) | WO2007140929A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985107A (en) * | 2010-07-15 | 2011-03-16 | 王维东 | Plastic grinder |
| CN103223364A (en) * | 2013-04-23 | 2013-07-31 | 安徽省荆涂机电工程有限公司 | Double helix stirring and crushing integrated apparatus |
| CN104785351A (en) * | 2015-03-27 | 2015-07-22 | 中建材（合肥）粉体科技装备有限公司 | Partitioning feeding device of roller press |
| CN107362860A (en) * | 2017-08-09 | 2017-11-21 | 陈秀玲 | Medicinal material disintegrating machine |
| CN114534852A (en) * | 2018-05-25 | 2022-05-27 | 布勒股份公司 | Distribution metering device for roller mill, roller mill and grinding method |
| CN117181362A (en) * | 2023-09-15 | 2023-12-08 | 南京博达环境科技有限公司 | Solid waste base geopolymer rolling equipment |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008043140A1 (en) | 2008-07-02 | 2010-01-07 | Bühler AG | Method for producing e.g. flour from wheat, involves using mill i.e. material-bed roller mill, for producing plant milling product, where breaking-up and separation steps of milling product follow grinding step in mill |
| KR101821088B1 (en) * | 2008-07-02 | 2018-01-22 | 뷔흘러 에이지 | Apparatus and method for producing flour and/or semolina |
| US8632028B2 (en) | 2010-09-02 | 2014-01-21 | Flsmidth A/S | Device for the comminution of material |
| DE102013018325B4 (en) | 2013-10-31 | 2019-03-21 | Khd Humboldt Wedag Gmbh | High-pressure roller press with regrind removal and method for avoiding vibrations during the application of regrind |
| RU2628297C2 (en) * | 2015-09-02 | 2017-08-15 | Федеральное государственное бюджетное научное учреждение "Зональный научно-исследовательский институт сельского хозяйства Северо-Востока имени Н.В. Рудницкого" (ФГБНУ "НИИСХ Северо-Востока") | Two-stage grain crusher for grain fodder production |
| CN107088466A (en) * | 2017-04-28 | 2017-08-25 | 南京市罗奇泰克电子有限公司 | A kind of waste material breaker in circuit substrate packaging process |
| CN110860330A (en) * | 2018-08-27 | 2020-03-06 | 唐山三发普林饲料有限公司 | Ultrafine grinder |
| CN112337557A (en) * | 2020-10-19 | 2021-02-09 | 南通康威尔生物化工有限公司 | White spirit is made and is used raw materials reducing mechanism |
| CN112570079A (en) * | 2020-11-30 | 2021-03-30 | 福鼎未来景观设计有限公司 | Roller press for cement production |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE639194C (en) * | 1933-02-21 | 1936-11-30 | Schuechtermann & Kremer Baum A | Process for briquetting fine waste on roller presses |
| DE1247123B (en) * | 1963-07-31 | 1967-08-10 | Rettenmaier & Soehne J | Device for feeding a material consisting of small particles to a roller gap |
| DK418387A (en) * | 1987-08-11 | 1989-02-12 | Smidth & Co As F L | METHOD AND APPARATUS FOR ROLLING CRUSHING AND MILLING OF MINERAL MATERIALS |
| DE3916641A1 (en) * | 1989-05-22 | 1990-11-29 | Kloeckner Humboldt Deutz Ag | ROLLER PRESS, IN PARTICULAR FOR PRESSURE REDUCTION, GRINNED GOODS |
| DE3926882A1 (en) * | 1989-08-16 | 1991-02-21 | Kloeckner Humboldt Deutz Ag | CYCLING MACHINE FOR GRINDING SPROEDEM GOOD |
| WO1995009080A1 (en) * | 1993-09-30 | 1995-04-06 | Maschinenfabrik Köppern Gmbh & Co. Kg | Process for producing sponge iron briquettes from fine ore |
| GB2367030B (en) * | 2000-09-20 | 2002-12-31 | Reckitt Benckiser Nv | Method and apparatus for manufacturing multi-layer press molded bodies |
| DE10144109A1 (en) * | 2001-09-03 | 2003-04-24 | Michael K Bahr | Compressing and granulating finely dispersed powders or powder mixtures comprises adding binder as finely dispersed powder in small amounts to powder |
-
2006
- 2006-06-02 DE DE102006025833A patent/DE102006025833A1/en not_active Withdrawn
-
2007
- 2007-06-01 CA CA002653065A patent/CA2653065A1/en not_active Abandoned
- 2007-06-01 RU RU2008144301/21A patent/RU2008144301A/en not_active Application Discontinuation
- 2007-06-01 EP EP07725735A patent/EP2024091B1/en not_active Not-in-force
- 2007-06-01 WO PCT/EP2007/004855 patent/WO2007140929A1/en active Application Filing
- 2007-06-01 DK DK07725735.0T patent/DK2024091T3/en active
- 2007-06-01 US US12/302,672 patent/US20090236455A1/en not_active Abandoned
- 2007-06-01 CN CNA2007800205264A patent/CN101460247A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985107A (en) * | 2010-07-15 | 2011-03-16 | 王维东 | Plastic grinder |
| CN103223364A (en) * | 2013-04-23 | 2013-07-31 | 安徽省荆涂机电工程有限公司 | Double helix stirring and crushing integrated apparatus |
| CN104785351A (en) * | 2015-03-27 | 2015-07-22 | 中建材（合肥）粉体科技装备有限公司 | Partitioning feeding device of roller press |
| CN107362860A (en) * | 2017-08-09 | 2017-11-21 | 陈秀玲 | Medicinal material disintegrating machine |
| CN114534852A (en) * | 2018-05-25 | 2022-05-27 | 布勒股份公司 | Distribution metering device for roller mill, roller mill and grinding method |
| CN114534852B (en) * | 2018-05-25 | 2023-12-01 | 布勒股份公司 | Distribution metering device for roller mill, roller mill and grinding method |
| US11865547B2 (en) | 2018-05-25 | 2024-01-09 | Bühler AG | Distribution metering device for a roller mill, roller mill with such a distribution metering device, method for grinding grinding stock, and roller mill comprising a switching cabinet with a cooling system |
| CN117181362A (en) * | 2023-09-15 | 2023-12-08 | 南京博达环境科技有限公司 | Solid waste base geopolymer rolling equipment |
| CN117181362B (en) * | 2023-09-15 | 2024-03-29 | 南京博达环境科技有限公司 | Solid waste base geopolymer rolling equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| US20090236455A1 (en) | 2009-09-24 |
| WO2007140929A1 (en) | 2007-12-13 |
| DK2024091T3 (en) | 2013-03-25 |
| RU2008144301A (en) | 2010-07-20 |
| EP2024091B1 (en) | 2012-12-12 |
| CA2653065A1 (en) | 2007-12-13 |
| DE102006025833A1 (en) | 2007-12-06 |
| EP2024091A1 (en) | 2009-02-18 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090617 |